html {
    color: #000;
    background: #fff;
    overflow-y: scroll;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%
}

html * {
    outline: 0;
    -webkit-text-size-adjust: none;
    -webkit-tap-highlight-color: transparent
}

body,
html {
    font-family: sans-serif
}

article,
aside,
blockquote,
body,
button,
code,
dd,
details,
div,
dl,
dt,
fieldset,
figcaption,
figure,
footer,
form,
h1,
h2,
h3,
h4,
h5,
h6,
header,
hgroup,
hr,
input,
legend,
li,
menu,
nav,
ol,
p,
pre,
section,
td,
textarea,
th,
ul {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

input,
select,
textarea {
    font-size: 100%
}

table {
    border-collapse: collapse;
    border-spacing: 0
}

fieldset,
img {
    border: 0
}

abbr,
acronym {
    border: 0;
    font-variant: normal
}

del {
    text-decoration: line-through
}

address,
caption,
cite,
code,
dfn,
em,
th,
var {
    font-style: normal;
    font-weight: 500
}

ol,
ul,
li {
    list-style: none
}

caption,
th {
    text-align: left
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-size: 100%;
    font-weight: 500
}

q:after,
q:before {
    content: ''
}

sub,
sup {
    font-size: 75%;
    line-height: 0;
    position: relative;
    vertical-align: baseline
}

sup {
    top: -.5em
}

sub {
    bottom: -.25em
}

a:hover {
    text-decoration: none
}

a,
ins {
    text-decoration: none
}

button,
input[type=button],
input[type=file],
input[type=submit] {
    cursor: pointer;
    -webkit-appearance: none
}

body {
    font-size: 12px;
    height: 100%;
    font-family: "PingFang SC", "Helvetica Neue", Helvetica, Arial, "Hiragino Sans GB", "Microsoft Yahei", STHeiti, sans-serif;
}

.clearfix {
    *zoom: 1;
}

.clearfix::after {
    content: '';
    display: table;
    clear: both;
}

//顶部菜单栏
body.showMenu {
    height: 100vh;
    overflow: hidden;
}

header {
    .logo {
        width: 100%;
        height: 0.5rem;
        z-index: 10;
        position: fixed;
        top: 0;
        left: 0;
        //渐变
        //       filter:alpha(opacity=100 finishopacity=50 style=1 startx=0,starty=0,finishx=0,finishy=150) progid:DXImageTransform.Microsoft.gradient(startcolorstr=red,endcolorstr=blue,gradientType=0);
        //      -ms-filter:alpha(opacity=100 finishopacity=50 style=1 startx=0,starty=0,finishx=0,finishy=150) progid:DXImageTransform.Microsoft.gradient(startcolorstr=red,endcolorstr=blue,gradientType=0);/*IE8*/    
        background: rgba(0, 0, 0, 0.5);
        /* 一些不支持背景渐变的浏览器 */
        background: -moz-linear-gradient(top, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0));
        background: -webkit-gradient(linear, 0 0, 0 bottom, from(rgba(0, 0, 0, 0.5)), to(rgba(0, 0, 0, 0)));
        background: -o-linear-gradient(top, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0));
        height: 0.9rem;
        transition: background 0.4s;
        transition-delay: 400ms, 400ms;
        -moz-transition-delay: 400ms, 400ms;
        /* Safari and Chrome */
        -webkit-transition-delay: 400ms, 400ms;
        /* Opera */
        -o-transition-delay: 400ms, 400ms;
        .logo_bg {
            width: 100%;
            height: 100%;
            background: #000000;
            position: absolute;
            top: 0;
            left: 0;
            z-index: -1;
            opacity: 0;
        }
    }
    .logo a {
        float: left;
        font-size: 0.32rem;
        font-family: "MFDianHei_Noncommercial-Regular";
        color: #f0f0f0;
        font-weight: 500;
        display: block;
        line-height: 0.9rem;
        height: 0.9rem;
        vertical-align: middle;
        margin-left: 0.3rem;
    }
    .menu {
        float: right;
        width: 1rem;
        height: 0.9rem;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        img {
            width: 100%;
            height: auto;
        }
        .line {
            width: 0.4rem;
            height: 1px;
            background: #666666;
            transition: all .4s;
        }
        .line:not(:first-child) {
            margin: 0.1rem 0 0;
        }
    }
    .logo.active .line:nth-child(1) {
        margin-bottom: 0;
        transform: rotate(-45deg);
        -ms-transform: rotate(-45deg);
        /* IE 9 */
        -moz-transform: rotate(-45deg);
        /* Firefox */
        -webkit-transform: rotate(-45deg);
        /* Safari 和 Chrome */
        -o-transform: rotate(-45deg);
        /* Opera */
    }
    .logo.active .line:nth-child(2) {
        opacity: 0;
        height: 0;
        margin: 0;
    }
    .logo.active .line:nth-child(3) {
        margin-top: 0px;
        transform: rotate(45deg);
        -ms-transform: rotate(45deg);
        /* IE 9 */
        -moz-transform: rotate(45deg);
        /* Firefox */
        -webkit-transform: rotate(45deg);
        /* Safari 和 Chrome */
        -o-transform: rotate(45deg);
        /* Opera */
    }
}

.nav {
    height: 4.0rem;
    width: 100%;
    background: url(../images/bannerBg.png) no-repeat;
    background-size: 100% auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    .container {
        text-align: center;
        color: #f0f0f0;
        h1 {
            font-family: 'DFHeiW9';
            font-size: 0.33rem;
            font-weight: 600;
            margin-bottom: 0.2rem;
        }
        h2 {
            font-family: 'PingFangSC-Regular';
            font-size: 0.33rem;
            font-weight: 500;
            margin-bottom: 0.23rem;
        }
        p {
            font-family: 'PingFangSC-Regular';
            font-size: 12px;
            font-weight: 400;
        }
    }
}

.menuList {
    background: #000000;
    width: 100vw;
    height: 100vh;
    position: fixed;
    display: none;
    top: 0;
    left: 0;
    z-index: 1;
    overflow: auto;
    .top {
        height: 1.4rem;
    }
    ul {
        width: 80vw;
        margin: 0 auto 0;
    }
    li {
        height: 0.97rem;
        line-height: 0.97rem;
        border-bottom: 1px solid #333333;
        vertical-align: middle;
        display: none;
        //      transition: opacity 0.4s;
        a {
            color: #fff;
            font-family: 'PingFangSC-Regular';
            font-size: 0.30rem;
            font-weight: 400;
            width: 100%;
            height: 100%;
            display: inline-block;
        }
        a.selected {
            color: #a5a5a5;
        }
    }
    li.active {
        opacity: 1;
    }
}

.menuList.active {
    display: block;
}

// footer
#footer {
    background: #1a1c29;
    text-align: center;
    color: #fff;
    padding-bottom: .37rem;
    img {
        width: 2.14rem;
        height: 2.14rem;
        margin: .7rem 0 .2rem 0;
    }
    h3 {
        font-size: 14px;
        margin-bottom: .4rem;
    }
    p {
        color: #999;
        &+p {
            margin-top: .15rem;
        }
    }
}